inate behind, the eyes large and ovate; the mandibles and
antennae rufo-fulvous. Thorax with the sides flattened, the disk slightly
convex; a deep strangulation between the meso- and metathorax, the
latter rounded above and oblique behind; the trochanters, articulations
of the legs, and the tarsi rufo-fulvous. Abdomen thinly covered with a
fine cinereous pile; the first node of the petiole somewhat
oblong-ovate, the second subglobose, the petiole of the first node
short.

_Hab._ Aru.

Gen. PODOMYRMA, _Smith_.

_Head_ oblong in the _female_, rather wider than the thorax; in the
_worker_ subovate and much wider; _eyes_ small, ovate and placed about
the middle at the sides of the head; _antennae_ geniculated, the scape
about two thirds of the length of the flagellum which is clavate, the
club three-jointed; the _mandibles_ stout and dentate; the _labial
palpi_ 3-jointed; the _maxillary palpi_ 4-jointed. _Thorax_,
oblong-ovate in the _female_, in the _worker_ transverse in front and
narrowed behind with the metathorax bidentate; the anterior wings with
one elongate marginal cell and two submarginal cells, the second
extending to the apex of the wing; the legs stout, the femora
incrassate; abdomen ovate, the peduncle with two nodes.

The insects included in this genus are undoubtedly most nearly allied to
those belonging to the genus _Myrmecina_; but, excepting that they agree
in having the same number of joints in the palpi, they have little
resemblance to each other. With the exception of the genus _Myrmecia_,
these are the largest insects in the subfamily Myrmicidae; and all the
species are distinguished by their remarkably thickened femora and
margined thorax: we are unacquainted with the males.

1. PODOMYRMA FEMORATA. _P._ ferruginea; capite oblongo, oblique striato,
thorace abdomineque laevibus nitidis; alis subhyalinis fusco-nebulosis;
femoribus valde incrassatis, basi tenuissimis, femoribus posticis infra
compressis.

_Female._ Length 8 lines. Rufo-testaceous; the mandibles and anterior
margin of the face black, the inner margin of the mandibles rufo-piceous
and armed with six short stout teeth, the apical tooth largest. The head
oblong, slightly narrowed posteriorly and emarginate behind,
longitudinally striated, the striae diverging from the centre at the
anterior ocellus; at half the distance between the posterior ocelli and
the margin of the vertex the striae are transverse. Thorax smooth and
shining, wit